Authorized Service Centers

Corporate Headquarters

Instrumentation Northwest, Inc.
8902 122nd Ave N.E., Kirkland, WA 98033
Phone: 800-776-9355 (1-800-PRO-WELL) or (425) 822-4434
Fax: (425) 822-8384
Email:support@inwusa.com
Business Hours: 7:30am to 5:30pm PST

Southwest Regional Office

Instrumentation Northwest, Inc.
4620 Northgate Blvd., Suite 170, Sacramento, CA 95834
Phone: (866)928-7760 or (916) 922-2900
Fax: (916) 648-7766
Email:inwsw@inwusa.com
Business Hours: 8am to 5pm PST